Loft conversion cost
in Kew.
Kew — TW9 — between Chiswick and Richmond, anchored by Kew Gardens. Generous Edwardian and inter-war housing, with strong family-buyer demand and consistently high property values.
What makes loft work in Kew distinct.
Housing: Edwardian and inter-war terraces and semis, plus some Victorian housing closer to the gardens.
Planning: Kew Green and Kew Gardens conservation areas cover central Kew. Article 4 applies on key streets near the gardens.
Applications go to LB Richmond upon Thames. We submit on your behalf and handle conservation officer correspondence end-to-end.
The five loft types — TW9 numbers.
All figures inclusive of design, planning, build, contingency and VAT. The Kew multiplier (1.05×) reflects local labour, scaffolding logistics, conservation requirements and finish expectations.
The 2026 London Loft Cost Guide.
Borough-by-borough pricing, a full cost breakdown, PD vs full planning explained, and the seven hidden costs to watch for in Kew and beyond.
Send me the guide.
What Kew homeowners ask us.
Do I need planning permission for a loft in Kew?
Kew Green and Kew Gardens conservation areas cover central Kew. Article 4 applies on key streets near the gardens. Outside conservation areas, most rear-dormer conversions in Kew qualify for permitted development (PD) within the 40m³ (terrace) or 50m³ (semi/detached) volume limits. Mansards always need full planning. We check your specific address before quoting and submit the application on your behalf.
How protective is Richmond Council of Kew's roofline?
Very — particularly near Kew Gardens, where conservation policy is among the strictest in the borough. Slate or clay tiles, recessed dormer faces, timber sashes. Article 4 streets need full planning rather than PD. Well-designed submissions clear in 8–10 weeks.
How long does a Kew loft conversion take?
Typical timeline: 6–10 weeks for design and planning (longer in conservation areas like much of Kew), then 8–14 weeks on site for a standard dormer, 12–18 weeks for an L-shape or hip-to-gable, and 14–20 weeks for a mansard. LB Richmond upon Thames processes PD-route Lawful Development Certificates in approximately 8 weeks.
What does a loft conversion add to Kew property values?
In TW9, a well-executed loft conversion typically adds 15–25% to property value — often more in prime postcodes. The ROI is strongest when you add a double bedroom plus en-suite, which is the standard L-shape dormer configuration. Property uplift on a £47k–£231k build commonly exceeds the build cost by 30–60%.
Does 2VP work on Kew loft conversions?
Yes — Kew is within our core London catchment. Our studio is at 20 Dawes Road in Fulham, 7.0km from Kew. We've delivered loft conversions across the TW9 postcode and our subcontractor network covers Richmond upon Thames. Free site visit, fixed-price quote, 10-year HomePro guarantee on the finished work.
Twenty minutes on site in Kew.
On us.
Nick Elias RIBA and Vladimir will visit your Kew home, walk the loft, check head height, advise on PD vs planning, and give you a realistic budget and programme — even if a loft isn’t right for your house.
One number. Sixty seconds. No callback.
Price your Kew loft conversion using the same 2026 rate card we quote real clients with.
Price my Kew loft →